Topband: 1820 spur

[Terry Conboy]

On 2012-11-02 7:16 PM, Mike Waters wrote:
> It can be heard in Japan and Canada?! Where could it be coming from?
>
> 73, Mike
> www.w0btu.com
>
1820 kHz is also 4 times the common 455 kHz IF.  You could be hearing 
your own receiver(s).

As a teenager, I used to listen to a 910 kHz AM station in Portland, OR, 
and some of our household 5-tube AM radios had beat notes from 2 x 455 kHz.

73, Terry N6RY